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Clearnote
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Junior High
Science
想問這題,謝謝
Science
Junior High
Resolved
4 monthsago
abc🐷
想問這題,謝謝
35. 一單擺如圖(35)。將擺錘自甲點從靜止自由釋放,經過最低點乙點,到達與甲點等高的丙點。 已知擺錘在甲點、乙點及丙點的重力位能分別為U、Uz及U,擺錘在甲點、乙點及丙點的動 能分別為E、Ez 及Eㄞ,若不計任何摩擦力,則下列何者正確? (A)U-Uz=2 E丙 (C)U-U E-E Uz= 0 Up= UA > Uz (B)Uz-U两=2 E w (D)UUc=E-Ec E甲=E丙<E乙 甲 EL-Eq 圖(35) 丙
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✨ Best Answer ✨
萱的筆記宮殿
4 monthsago
接下來就是移項了
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